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Onions are easy to grow and can be planted from sets, plants or seeds. The size of the onion’s bulb is determined by length of growing season, so if you have a short growing season get sets or transplants.
How Do I Grow Onions?
How to grow onions depends on which variety you are growing. Scallions (Green Onions) can be directly sown, 16 per square-foot, every 3 weeks from April to late August. Seeds will emerge in 6-12 days, depending on conditions.
Other onions you will want to start from seed indoors in late winter. Sprinkle twenty seeds into cups of vermiculite 8-12 weeks before last spring frost and keep the seeds warm at 70 F until they have sprouted. Once the seedlings have begun to sprout, about 5 days later, move them to full sun and place them in seedling trays.
Four weeks before the last spring frost, transplant your onion seedlings into the garden. Shake most of the vermiculite from your plants then gather them in bunches. With a pair of scissors cut off the tops and roots of the plant so it’s balanced in terms of weight on either side. Once the plants are prepared, make 4 holes per square foot and place your plant into each. Firm up the soil and water your new onions. If you are planting onions to be overwintered, start them indoors in the summer and plant them outside in the Fall.
If you decide to purchase your onions by mail order, or from sets they may look dead upon seeing them for the first time, but they will perk up as soon as you get them in the ground.
Avoid asparagus and peas.
1 cup: Antibacterial, Vitamin C (20%), Thiamin (5%), Vitamin B6 (10%)
To harvest scallions (Green Onions) pull out the entire bulb when plants reach 6-8" (15-20cm) tall, and the stalks are still fairly thin and white at the bottom.
Harvest all other onions by pulling them from the ground for fresh use as you need them. Onions with thick green stems don’t do well in storage, so you’ll need to use them right away. For onions that do store well, harvest them when most of the tops have turned brown and fallen over. Pull the entire bulb from the ground and lay them out flat to dry and cure for long term storage.
When your onions are dry, braid the tops and hang in a cool dry place, or clip off the tops and store them in either a mesh bag or slat-sided boxes.
Preparing and using
Onions are easy to grow and almost necessary in the kitchen! They will store for months if kept in a dark, cool and dry place. Use them raw in your dips and salads or add them to whatever you're cooking for a nice flavour. Try different varieties to see which flavour you like the best.
Helpful Tips and Tricks
To save yourself some space, sow several seeds in one pot and later transplant them as clumps.